Improvement in railway-carriages



A. R. LOCKE. Road or IRailway Carriage. No. 106,378. Patented Aug. 16, 1870.y

@f/lzfs attorney.

N, PLTERS. Phmn-Limngmpher, wnihingmn. D. CA

UNTTED STATES PATENT OFFICE.

' AARON R. LOGKE, OF BOSTON, MASSACHUSETTS.

IMPROVEMENT IN RAILWAY-CARRIAGES.`

Specification forming part of Letters Patent No. l06,378, dated August 16, 1870.

To all whom it may concern Beit known that I, AARON It. Locxn, of Boston, in the county of Sutfolk and State of Massachusetts, have made a new and useful invention having reference to Railway and Common Road Carriages; andI do hereby declare the'same to be fully described in the following specification and represented in the accompanying drawings, making part thereof, and ot'which- Figure 1 isa top View, Fig. 2 an under side view, Fig. 3 a rear elevation, and Fig. 4 a

transverse section, of a carriage furnished with my said invention, the last-named figure being made so as to exhibit the cam-grooves of the curved slide-bar, which issupported by an arm projecting from the front axle.

1n carrying out myinvention Icombine with the front axle (pivoted to the carriage-body so as to turn ina horizontal plane) and withthe be runningin astraightpath,beingsoclutched to the axle as to be revolved by it. The wheel so unclutch ed isl that which, while the carriage may be on the curve, may be on the outside or longer rail or wheel-path. By allowing it to run independently ofthe other or fellow wheel and the driving-axle, while the latter are in conjunction and both wheels are ona vcurved track,the inner wheel will not slip on the track, but both wheelswillreadilyconform themselves to the length of curve each has to .pass over.

In the drawings, A denotes thecarria ge-body; B, the rear or cranked driving-axle, and (l the front or guiding axle. The latter axle is held to the carriage by, or turns horizontally on, a king-bolt or transom-bolt, D, which extends downward from a bearing, E, supported by a spring, F, fixed to the carriage-body. The wheels G G of the front axle are to revolve freely thereon. The same may be said with respect to those, H H, of the rear axle when they are not clutched thereto. Each of the wheels H has applied to it and the axle one ot tzvo clutches, 1 I', whose movable parts an w are connected to the axle by a feather connection, and arey adapted to slide endwise on. it.'

in the usual way, in which the movable part of a clutch is applied tol its shaft.1 The said movable part ot'each clutch has a furcated lever, K, for operating or sliding it lengthwise i on the axle. The two furcated levers ofthe clutches are representeddn Fig. 3 ot' the drawings as pivoted at a a to the two axle-box hang ers L L, extended downward trom the earriage-body.

Fig. 5 is a section taken through one of the rear wheels and its clutch, the fixed part y of the clutch being formed in the hub ot' the wheel, and the movable part .fr being applied to the axle in manner as hereinbet'ore mein tioned. A clutch being a mechanical con trivance well understood by niechanicians, it will l not be necessary for me' to give a further description ot' it. A spring, z, applied to the furcated lever ot each clutch serves to maintain the wheel clutched to the rear axle when the other wheel is out of engagement there' with. Between the longer arms of the said levers K K is a rod, M, which slides freely in holes in the hangers, and is jointed to, or suit,- ably applied to, one arm ot' a bent lever, VN, pivoted to a hanger, O. The other arm of the bent lever extends rbetween the prongs of a long forked lever, P, arranged and pivoted to a projectio n,Q,disposed as shown in the drawings. The front arm of the lever P enters a .cam-groove, R, made in a curved slide-bar, S.

(See Fig. 6, which is a view of the rear side of the said bar and such groove.) The bar S slides horizontally through guides T Textending down from the carriage-body, and atits middle'such curved bar is fixed to an arin, U, extended from the front axle. n

A hand-Wheel shaft, V, arranged in the bodyT in manner as represented, has two lines or chains, b b, wound about it in opposite direc-4 tions, and fixed at their outer extremities to the curved bar S. By revolving the handwheel shaft the said curved cam-groove bar S may be moved in either direction, so as to turn the front axleobliquely, either to the right or to theleft, with respectto the carriagebody. When the axleis so turned far enough in either direction the rear wheel on the outside curve or rail will be unclutched t'roin the axle, while the fellow rear wheel will be preserved in engagement with and so as to be revolved by the rear axle. The said rear axle is represented asprovided with two bell-cranks, c c, jointed to two connecting rods, d d, proceeding from two other bell-cranks, e e, of a driving-shaft, X. v

I claim as my invention- The combination ofthe two clutches and their operative mechanism, substantially as described, or the equivalent thereof, with the wheels and the two axles, applied together land to the carriage-body, essentially ns 'nereinbefore described.

2. The mechanism or co nbinntion, as explained, for opera-ting the sliding parts of the clutches I 1', the same consisting ofthe camgrooved curved bar S, fixed to an arm, U, projecting from the front axle, the levers N P, the slide-rod M, and the springs z z, and the fnrcated levers K K of the sliding parts x w oi' the clutches, the curved betr being provided -with mechanism for4 moving it in its guides, as set forth. Y

AARON R. LOGKE.

VVitnc/sscs:

R. H. EDDY, J. R. SNOW. 

